Expected Value Problem

You order twelve burritos from a Mexican restaurant, five with hot peppers and seven without. However, the restaurant forgot to label them. If you pick three burritos at random, find the probability of the event:

(a) At most one has hot peppers

I honestly have no idea where to begin, and I do not find the chapter very helpful to me. Anyone have any hints or suggestions?

You order twelve burritos from a Mexican restaurant, five with hot peppers and seven without. However, the restaurant forgot to label them. If you pick three burritos at random, find the probability of the event:

(a) At most one has hot peppers

I honestly have no idea where to begin, and I do not find the chapter very helpful to me. Anyone have any hints or suggestions?